Circuit breaker



FIG. 1 is a perspective view of a circuit breaker showing my new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top plan view thereof.

The broken line portion of the drawing figures is included to show unclaimed subject matter only and forms no part of the claimed design. 

CLAIM The ornamental design for a circuit breaker, as shown and described. 